The software operates on a "try-before-you-buy" model. The free trial allows you to test all features, but any saved or printed document will include a watermark. To remove the watermark and access priority support, you need a registration code.
Navigate to the Menu: Click on the File tab or the "Register" button usually located in the top toolbar. picopdf registration code exclusive
: Buy a license directly from the NCH Software PicoPDF Purchase Page to receive a unique code via email. The software operates on a "try-before-you-buy" model